2009. június 22., hétfő

How to draw colored text on a TStatusBar


Problem/Question/Abstract:

How to draw colored text on a TStatusBar

Answer:

The status bar is a standard Windows control, and as such, displays the font in the clBtnText value, which is set via the Control Panel. This color is black by default, but it can vary due to the user's color scheme. Other standard Windows controls, such as buttons, exhibit this identical behavior. The StatusBar and its associated panels have an owner-draw capability that allow you to draw text in any colors you want. Be sure to change the Style property of the TStatusBar.Panels to OwnerDraw.

procedure TForm1.StatusBar1DrawPanel(StatusBar: TStatusBar;
  Panel: TStatusPanel; const Rect: TRect);
begin
  if Panel = StatusBar.Panels[0] then
  begin
    StatusBar.Canvas.Font.Color := clRed;
    StatusBar.Canvas.TextOut(Rect.Left, Rect.Top, 'Panel - 0')
  end
  else
  begin
    StatusBar.Canvas.Font.Color := clGreen;
    StatusBar.Canvas.TextOut(Rect.Left, Rect.Top, 'Panel - 1');
  end;
end;

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